Varians Kalkülatory
Data setiň nusgasyny ýa-da ilat variasiýasyny hasapla
Netijeler ýazýan wagtyň täzelener.
Bu hasapçy hakda
example, if you have a sample of 1000 people, you can calculate the standard deviation by dividing the sample by 1000. The standard deviation is the average of the squared deviations from the mean and is the square of the standard deviation. This calculator gives the sample variance (sum of squared deviations divided by n − 1) or the population variance (divided by n), along with the standard deviation, mean, range and sum of squared deviations. Variance is expressed in squared units, which is why it is usually easier to interpret. Variance is usually not negative and gives extra weight to values that lie far from the mean. If you have a sample of 1000 people, you can calculate the standard deviation by dividing the sample by 1000.To find it, take the mean, subtract it from every value, square each of those deviations, add them together and divide by n − 1 for a sample or by n for a whole population.To find it, work with the standard deviation calculator.To find it, work with the standard deviation calculator.To find it, work with the standard deviation calculator.To find it, work with the standard deviation calculator.To find it, work with the standard deviation calculator.To find it, work with the standard deviation calculator.To find it, work with the standard deviation calculator.To find it, work with the standard deviation calculator.To find it, work with the standard deviation calculator.To find it, work with the standard deviation calculator.To find it, work with the standard deviation calculator.To find it, work with the standard deviation calculator.To find it, work with the standard deviation calculator.To find it, work with the standard deviation calculator.To find it, work with the standard deviation calculator.To find it, work with the standard deviation calculator.To find it, work with the standard deviation calculator.To find it, work with the standard deviation calculator.To find it, work with the standard deviation calculator.To find it, work with the standard deviation calculator.To find it, work with the standard deviation calculator.To find it, work with the standard
Köp soralýan soraglar
Varians nädip standart çeýnek bilen bagly?
Standart üýtgetme, variançanyň kvadrat köki. Variansa kvadrat birliklerde (meselem, kvadrat dollarlar) bar, standart üýtgetme bolsa, özbaşdak birliklerde, şonuň üçin ikisi hemme wagt birmeňzeş üýtgetme beýan eder.
N versus n - 1 nirede ulanmak gerek?
Detalyňyz uly bir ilat sanyny hasaplamak üçin ulanylan bir nusga bolsa n - 1 bilen bölünsin; detalyňyz size gyzyklanýan ähli halk sanyny görkezse n bilen bölünsin.
Näme üçin variansiň ikinji birlikde bolmagy gerek?
Her bir çykyş ortaçadan öň ikinjilenýänsoň, netije özbaşdak birlikden ikinjilenýäni getirýär - ikinjilenýän dollarlar, ikinjilenýän santimetrler we ş.m.
Varians
Haýba. Bu ikinjiden umumy bir sany, şonuň üçin her wagt süňňü ýa-da oňly. Süňňüň umumysy bir setdäki her bir mykdaryň birmeňzeşdigini aňladýar.
Varians we standart çeýnek arasy nädip tapawutlanýar?
Olar şol bir ýaýramagy beýan edýärler, ýöne dürli ölçekler bilen: variança ortaça kvadratik çykyş, we standart çykyş onuň kvadratik köki, aňsatlyk bilen birikmelerde. Eger variança 25 bolsa, standart çykyş 5.
Varians real analizde nädip ulanylýar?
Varians finansda riskiň, inženerçilikde signal güýjüni we ANOVA-da F-testini aşakda saklaýar, bu ýerde toparlar arasyndaky varianslar olar içindeki varianslar bilen deňeşdirilip toparyň ortalarynyň hakykatda tapawutlanýandygyny kesgitlemek üçin ulanylýar.
API — bu hasapçyny koddan ullan
Bu hasapçyny azat JSON ahtar noktasy hökmünde çagyr - açar gerek däl. Aşakdaky meýdança mykdarlaryny soragyň parametrleri ýa-da JSON hökmünde iber. Eňlisçe senedleri oka →
_Soňky
GET https://calculator.free/api/v1/variance/curl
curl "https://calculator.free/api/v1/variance/?numbers=12, 15, 17, 20, 22, 25&type=sample"JavaScript fetch()
const r = await fetch(
"https://calculator.free/api/v1/variance/?" + new URLSearchParams({
"numbers": "12, 15, 17, 20, 22, 25",
"type": "sample"
}));
const data = await r.json();
console.log(data.results);Netijeler diňe umumy ýardam üçin hasaplanypdyr, maliýe, lukmançylyk ýa-da salgyt maslahaty üçin däl.